51883209

Appears in sequences

• Second column of A027466.at n=8A027473
• Triangle with T(n,k)=n!*(k-1)^k/k! where 1<=k<=n.at n=43A076482
• Triangle T(n,k) = k^n * sum(binomial(n,n-k-j),j=0..n-k).at n=43A215079
• Triangle read by rows: T(0,0) = 1; T(n,k) = 7 * T(n-1,k) + T(n-2,k-1) for k = 0..floor(n/2). T(n,k)=0 for n or k < 0.at n=31A317014
• Heinz numbers of integer partitions whose sum of reciprocals squared is 1.at n=11A318587
• Number T(n,k) of endofunctions on [n] with exactly k fixed points, all of which are isolated; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=46A349454